R
recharge - term for 'sleeping"; an other term is 'to offline' or 'to shut down', but those are also used as synonyms for death
"to offline a mech/femme" can mean to kill him/her as well as to make him/her exhaust so much that he/she slips into recharge
rotater cup- sholder joint
Rust- In Cybertronian terms, something akin to bad hygiene that has the terminal power of the plague if left unchecked. Like virtually all mechanisms, Cybertronians can develop rust, from not only the natural oxide bonding of their alloys but also from organic and technorganic organisms that produce rust as a by-product of consuming metal. Developments in Cybertronian technology and metallurgy have reduced the possibility of natural oxidation to virtually nil, although there are some special alloys that occasionally corrode. However, practically all Cybertronians are still vulnerable to living rust. It can spread to others and cause death.